Analysis

  • max time kernel
    125s
  • max time network
    183s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20250207-en
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20250207-enlocale:en-usos:windows10-ltsc 2021-x64system
  • submitted
    10/02/2025, 04:34

General

  • Target

    VirusSign.2023.11.29/045d80d0973c5d854927b589b123f733.exe

  • Size

    242KB

  • MD5

    045d80d0973c5d854927b589b123f733

  • SHA1

    8781c053f09e31ef827f8e30aa971d8471ba91ff

  • SHA256

    c20b26d34fae3e115911a7ce3c9e6b5e2bfca9453418f54ab5c8ae422fa6ee14

  • SHA512

    943ac15b49f0077b087068ef9f89609f653a37958f2a4532a0072f605fb9252ef5566fbe6af58aa1f6147955452b310584bf84d4e89774f46ce68617c12a1bca

  • SSDEEP

    3072:qVHgCc4xGvbwcU9KQ2BBAHmaPxIVopb5ESvi5PZGIFj:bCc4xGxWKQ2BonxQPDl

Score
10/10

Malware Config

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    ftp.tripod.com
  • Port:
    21
  • Username:
    onthelinux
  • Password:
    741852abc

Signatures

  • Downloads MZ/PE file 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Drops file in Program Files directory 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 1 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\VirusSign.2023.11.29\045d80d0973c5d854927b589b123f733.exe
    "C:\Users\Admin\AppData\Local\Temp\VirusSign.2023.11.29\045d80d0973c5d854927b589b123f733.exe"
    1⤵
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2760
    • C:\Program Files (x86)\cdb1b72a\jusched.exe
      "C:\Program Files (x86)\cdb1b72a\jusched.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:228
  • C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe
    "C:\Program Files (x86)\Microsoft\EdgeUpdate\MicrosoftEdgeUpdate.exe" /ping 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-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
    1⤵
    • System Location Discovery: System Language Discovery
    • System Network Configuration Discovery: Internet Connection Discovery
    PID:1620

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files (x86)\cdb1b72a\cdb1b72a

    Filesize

    17B

    MD5

    134c1d489094d6d3399f65b0e9aebc1f

    SHA1

    612a57fbe6ed3ab9c15b39451171d813314a28d5

    SHA256

    54f9150d1268f7b4b83dd9fc3ec32274bf749715a5806ff3ca5262f5427d6781

    SHA512

    b09bf60e4850d05261d81a124a647dd111f42480224eae8a3bd2f64736c38119953703f868ad34194a7ae6dad6aabff4081ba73df262bbe9f5327867c56a48ed

  • C:\Program Files (x86)\cdb1b72a\jusched.exe

    Filesize

    242KB

    MD5

    02071671a624b4652ffcfe0f177f7f79

    SHA1

    5536d18798fc620711ff6319ecc6798421fdd3cd

    SHA256

    e18c700562baff86df9d4f4fe358c69644dd3c479e5f1755b017f26f83d6c6fe

    SHA512

    85234cc87411d5250c315671943b8762c6bc586ab704216114895dc8794a840a9d952191ae1368323e5c35939e7db1bdafee71183f602b3412d8dfd4f1295965

  • memory/228-16-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/228-21-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2760-0-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB

  • memory/2760-18-0x0000000000400000-0x000000000044E000-memory.dmp

    Filesize

    312KB